scholarly journals High-resolution, high-aspect-ratio iridium–nickel composite nanoimprint molds

2016 ◽  
Vol 34 (6) ◽  
pp. 061804 ◽  
Author(s):  
Chang-Sheng Lee ◽  
Yeong-Yuh Lee ◽  
Karen S. L. Chong ◽  
Li Wang ◽  
Christian Dais ◽  
...  
Keyword(s):  
High Resolution ◽  
Aspect Ratio ◽  
High Aspect Ratio

scholarly journals High-resolution particle separation by inertial focusing in high aspect ratio curved microfluidics

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Javier Cruz ◽  
Klas Hjort
Keyword(s):  
High Resolution ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Biological Fluids ◽  
Essential Feature ◽  
Particle Separation ◽  
Size Difference ◽  
Inertial Focusing ◽  
Complex Samples ◽  
Wide Range

AbstractThe ability to focus, separate and concentrate specific targets in a fluid is essential for the analysis of complex samples such as biological fluids, where a myriad of different particles may be present. Inertial focusing is a very promising technology for such tasks, and specially a recently presented variant, inertial focusing in High Aspect Ratio Curved systems (HARC systems), where the systems are easily engineered and focus the targets together in a stable position over a wide range of particle sizes and flow rates. However, although convenient for laser interrogation and concentration, by focusing all particles together, HARC systems lose an essential feature of inertial focusing: the possibility of particle separation by size. Within this work, we report that HARC systems not only do have the capacity to separate particles but can do so with extremely high resolution, which we demonstrate for particles with a size difference down to 80 nm. In addition to the concept for particle separation, a model considering the main flow, the secondary flow and a simplified expression for the lift force in HARC microchannels was developed and proven accurate for the prediction of the performance of the systems. The concept was also demonstrated experimentally with three different sub-micron particles (0.79, 0.92 and 1.0 µm in diameter) in silicon-glass microchannels, where the resolution in the separation could be modulated by the radius of the channel. With the capacity to focus sub-micron particles and to separate them with high resolution, we believe that inertial focusing in HARC systems is a technology with the potential to facilitate the analysis of complex fluid samples containing bioparticles like bacteria, viruses or eukaryotic organelles.

Analysis and characterization of high-resolution and high-aspect-ratio imaging fiber bundles

2015 ◽  
Vol 54 (32) ◽  
pp. 9422 ◽  
Author(s):  
Nojan Motamedi ◽  
Salman Karbasi ◽  
Joseph E. Ford ◽  
Vitaliy Lomakin
Keyword(s):  
High Resolution ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Fiber Bundles ◽  
Ratio Imaging

Shrink film patterning by craft cutter: complete plastic chips with high resolution/high-aspect ratio channel

Lab on a Chip ◽  
2010 ◽  
Vol 10 (18) ◽  
pp. 2472 ◽  
Author(s):  
Douglas Taylor ◽  
David Dyer ◽  
Valerie Lew ◽  
Michelle Khine
Keyword(s):  
High Resolution ◽  
Aspect Ratio ◽  
High Aspect Ratio

High-Resolution, High-Aspect-Ratio Printed and Plated Metal Conductors Utilizing Roll-to-Roll Microscale UV Imprinting with Prototype Imprinting Stamps

2018 ◽  
Vol 57 (48) ◽  
pp. 16335-16346 ◽  
Author(s):  
Krystopher S. Jochem ◽  
Wieslaw J. Suszynski ◽  
C. Daniel Frisbie ◽  
Lorraine F. Francis
Keyword(s):  
High Resolution ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Roll To Roll
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